1296815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:370

約数の個数: 16

約数和(自身を含む): 1705536

約数和(自身を除く): 408721

約数列:

[1, 5, 13, 65, 71, 281, 355, 923, 1405, 3653, 4615, 18265, 19951, 99755, 259363, 1296815]

約数ペア:

[(1, 1296815), (5, 259363), (13, 99755), (65, 19951), (71, 18265), (281, 4615), (355, 3653), (923, 1405)]